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CLAUDIA M NADER M.D.
NPI 1083807523
Internal Medicine - Infectious Disease in Brighton, MA

Active since August 18, 2007PECOS EnrolledAccepts Medicare Assignment
11 NEVINS ST, SUITE 202, SEMC - MEDICAL SPECIALTIES PRACTICE, BRIGHTON, MA 02135(617) 779-6700(617) 779-6770 Get Directions Write a Review

NPPES record last updated: March 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Claudia M Nader M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CLAUDIA M NADER M.D. (NPI 1083807523) is an individual infectious disease provider in Brighton, Massachusetts, licensed in Massachusetts (232088) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with St Elizabeth's Medical Center, and maintains a secondary practice location in Brighton.

NPPES Registry Identity

NPI1083807523
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameCLAUDIA M NADERCredential: M.D.
Location Address11 NEVINS ST, SUITE 202, SEMC - MEDICAL SPECIALTIES PRACTICEBrighton, MA 02135-3514
Mailing AddressBmchs Provider Enrollment, 960 Massachusetts Ave Flr 2Boston, MA 02118
Phone(617) 779-6700
Fax(617) 779-6770
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateAugust 18, 2007
Last NPPES UpdateMarch 17, 2025
NPPES CertifiedMarch 12, 2025
✔ NPI 1083807523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in MA · 232088
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
11 NEVINS ST, SUITE 202, Brighton, MA 02135
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Secondary Practice Location 1

Location 1SEMC - Medical Specialties Practice -, 736 CambridgeBrighton, MA 02135 · Phone (617) 779-6700

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Claudia M Nader M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941395545
PECOS Enrollment IDI20070927000375
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Claudia Nader reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Steward Medical Group, Inc
2.2 mi
Specialist
9 GALEN ST
Watertown, MA 02472
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,103 clinicians in this Medicare group
NPI 1629398219 (615) 467-4474
Bmc Affiliated Physicians, Inc.
3.8 mi
Internal Medicine
1 BOSTON MEDICAL CENTER PLACE
Boston, MA 02118
  • Reassigned Medicare billing, Massachusetts enrollment
  • 716 clinicians in this Medicare group
NPI 1245320910 (617) 789-3000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
60 services37 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
56 services28 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
43 services43 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
42 services21 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Elizabeth's Medical Center

Acute Care Hospitals · Brighton, MA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number220036
Location736 Cambridge StreetBrighton, MA 02135 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02135 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
30%27 patients2/55-star benchmark: 92%
Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
16%94 patients1/55-star benchmark: 100%
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
60%87 patients3/55-star benchmark: 85%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%455 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
90%404 patients3/55-star benchmark: 99%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
33%40 patients2/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%78 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
75%204 patients4/55-star benchmark: 97%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
60%40 patients3/55-star benchmark: 90%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
33%198 patients2/55-star benchmark: 97%
Preventive Care and Screening: Influenza Immunization
Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization
34%167 patients2/55-star benchmark: 88%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
20%168 patients1/55-star benchmark: 96%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 98% · 115 patients
77%115 patients4/55-star benchmark: 98%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
80%204 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
71%204 patients4/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
37%204 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Claudia Nader's NPI number?

The NPI number for Claudia Nader is 1083807523. It was assigned to this individual provider in the NPPES registry on August 18, 2007.

Where is Claudia Nader located?

Claudia Nader practices at 11 Nevins St, Suite 202 Semc - Medical Specialties Practice, Brighton, MA 02135. The listed phone number is (617) 779-6700.

What is Claudia Nader's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Claudia Nader enrolled in Medicare?

Yes. Claudia Nader is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Claudia Nader's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Claudia Nader reassigns Medicare benefits to 2 organizations: Steward Medical Group, Inc (Watertown, MA) and Bmc Affiliated Physicians, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Claudia Nader's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Claudia Nader accept?

Health plans from WellSense Health Plan list Claudia Nader as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Claudia Nader affiliated with any hospitals?

According to CMS data, Claudia Nader is affiliated with St Elizabeth's Medical Center.

When was this NPI record last updated?

The NPPES record for Claudia Nader was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.